一、改进工程下的build.gradle

原文如下：
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.0'
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

 

改为下面：

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {

    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.0'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

另外注意编译的版本号，默认即可

distributionUrl=File:///D:/gradle/gradle-5.0-milestone-1-all.zip

另外gradle-wrapper.properties中的gradle也最好更亲成最新的版本
distributionUrl=file:///D:/gradle/gradle-5.0-milestone-1-all.zip